Which pump does this discharge valve assembly fit?

It is configured for the APLEX SC-170L pump. Confirm against your pump model before ordering.

What does the discharge valve do in the pump?

It is a fluid-end valve that releases pumped fluid on the pressure stroke and reseats to hold pressure. The assembly typically comprises the valve body, seat, spring and guide.

What does "abrasive service" mean here?

It indicates the assembly is intended for duty pumping abrasive or solids-laden fluids, as stated in the product name. No specific material or rating is published here.

Discharge Valve Assembly Abrasive Service for APLEX SC-170L

Discharge Valve Assembly Abrasive Service for APLEX SC-170L — Valve Assembly aftermarket replacement part

This is a discharge valve assembly built for abrasive-service duty in the fluid end of the APLEX SC-170L plunger pump. The valve controls one-way flow on the pressure stroke, opening to release fluid as the plunger advances and closing to hold pressure on the return. It is offered as an aftermarket replacement referenced to SKU 303008 and weighs about 6 lb.

What it is

A fluid-end valve assembly controls one-way flow through the pump — a suction valve admits fluid on the intake stroke and a discharge valve releases it on the pressure stroke. It typically comprises the valve body, seat, spring and guide.

Pump compatibility

SC-170L

Specifications

Property	Value
Weight	6.00 lb (≈ 2.72 kg, converted)

Manufacturer technical notes

Discharge Valve Assembly Abrasive Service for APLEX SC-170L (SKU:303008) Crafted from ASTM A240 S31803 duplex stainless steel body with WC-12Co tungsten carbide HVOF-sprayed valve core (hardness HV0.3≥1200, pressure rating ≥100MPa). Salt spray tested >2000hrs corrosion-free, API 7K compliant. EPDM seal ring paired with UNF 3A thread accuracy ±0.001", abrasion resistance 80% higher than 316SS

Verbatim from the Dongli product page on dlhddrilling.com.

Replacement / interchange

Aftermarket replacement cross-referencing 303008.

FAQ

Which pump does this discharge valve assembly fit?: It is configured for the APLEX SC-170L pump. Confirm against your pump model before ordering.
What does the discharge valve do in the pump?: It is a fluid-end valve that releases pumped fluid on the pressure stroke and reseats to hold pressure. The assembly typically comprises the valve body, seat, spring and guide.
What does "abrasive service" mean here?: It indicates the assembly is intended for duty pumping abrasive or solids-laden fluids, as stated in the product name. No specific material or rating is published here.

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All brand names, model numbers and part numbers are used for identification and cross-reference only and do not imply original-equipment manufacture. This is an aftermarket replacement part.

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